How to share your compliance pack with main contractors in one link (UK 2026 guide)
Most subcontractors send their compliance pack as a zip file of PDFs over email. Here is why that approach is breaking down in 2026, how live compliance share links work, what main contractors expect to see, and how UK trade contractors should handle compliance evidence going forward.
Why the zip-of-PDFs approach is breaking down
For two decades the standard way to share your compliance pack with a main contractor has been: gather every PDF (insurance certificate, NICEIC certificate, CHAS letter, training certificates, RAMS, sample method statements), put them in a zip file, email it across.
This worked when projects moved slowly, paperwork lived in filing cabinets, and main contractors did their checks once at the start of the relationship. None of those things are still true.
Projects now move fast. Subbies get added to live tenders with 48-hour response windows. Main contractors check compliance not just at onboarding but at every gate (mobilisation, mid-project audits, framework renewals). Pre-Qual platforms (CHAS, SMAS, Achilles) want continuously current evidence. The Building Safety Act 2022 has pushed pre-start documentation requirements significantly higher across the industry.
A zip of PDFs you sent six months ago does not satisfy any of this. Half the documents have expired. Two of them now point at the wrong site address. Your insurance certificate is a different number because you renewed. The main contractor cannot tell which version is current. The zip file is functionally useless for ongoing compliance verification.
This is the problem that live compliance share tools solve.
Every compliance document in one shareable hub
Insurance, accreditations, RAMS, certifications - all in one place. Share a single link with main contractors instead of attaching documents to emails. They see what is current, what is expiring, and what has been updated.
What a compliance share link actually is
A compliance share link is a single URL you give to a main contractor (or paste into a pre-qualification form). The URL leads to a live, always-current view of your compliance documents organised in the categories the main contractor cares about.
The link is generated by a compliance platform you maintain. The platform pulls the latest versions of each document from your account, displays expiry dates, flags anything close to expiry, and shows the verification status of each document.
From the main contractor's perspective, the experience is: click link, see professional compliance profile, download what they need, move on. From your perspective: maintain your documents in one place, never re-email a single PDF again.
What a typical compliance share contains
- Insurance certificates - public liability, employers liability, professional indemnity, contract works (each with expiry dates)
- Trade accreditations - CHAS, SMAS, Constructionline, SafeContractor, Acclaim, NICEIC, NAPIT, NFDC, RICS, SIA, etc
- Health and safety policies - your written H&S policy, equality and diversity policy, environmental policy
- Sample RAMS documents - 2-3 representative RAMS you have produced
- Training matrix overview - high-level view of CSCS coverage, first-aiders, IPAF, PASMA, asbestos awareness, etc
- Vehicle and plant register - if relevant, with MOT and LOLER status
- Recent project references - 3-5 recent contracts with values and main contractor names
- Company information - company number, registered address, ICO registration, modern slavery statement
Why main contractors prefer live shares to email attachments
The shift from "send your pack" to "send your link" did not happen because subbies pushed for it. Main contractors started asking. Here is why.
Currency confidence
When a main contractor's commercial team receives a zip from six months ago, they do not know which documents are still valid. They have to check each one individually, often by emailing the subbie to ask. A live share shows them current document status at a glance. Cuts a 90-minute administrative check to 10 minutes.
Single source of truth
If the main contractor saves your zip file and you renew your insurance, their saved version is now wrong. The main contractor only finds out when they check it during a HSE-relevant moment (incident, audit, framework review). With a live share, they always see your current documents because the link points at your live profile.
Audit trail
Live share platforms log who accessed the share, when, and what they downloaded. For frameworks that require subbie compliance to be checked on a schedule (most large frameworks), this becomes evidence of regular compliance verification. Audit-ready by design.
Pre-qual integration
Many pre-qualification platforms now accept "compliance link" as a field on the application. You paste your share URL once and the platform pulls live data from it. Updates flow through automatically when you renew documents.
Reduces back-and-forth
The email chain "can you send me your latest CHAS certificate" has been the bane of UK construction admin for two decades. A live share kills it. The contractor's commercial team can self-serve any document at any time.
How a compliance share works in Complys
Step by step:
Build your profile
Upload your documents into Complys. The system organises them into the standard compliance categories (insurance, accreditations, policies, training, plant). Each document gets an expiry date and a verification status.
Generate a share link
One click creates a public URL for your compliance profile. The URL is permanent (does not change when you update documents) and includes a unique identifier so you can see who is accessing your profile.
Share with main contractors
Send the link to your main contractor, paste it into pre-qualification forms, add it to your email signature, add it to your tender response documents. One link works everywhere.
Profile stays current automatically
When you upload a new insurance certificate, replace an expired CSCS card, or add a new accreditation, the share link reflects the change immediately. No re-sending, no re-uploading, no re-emailing.
See who accessed your profile
The dashboard shows which contractors have viewed your share and when. Useful for tender follow-up ("I see your team accessed our compliance profile last week, happy to discuss any questions") and for understanding which contractors are actively reviewing you.
See exactly when your emails get opened
Every introduction, RAMS send, and compliance share in one view. Live email tracking shows whether each email was delivered, opened, or clicked. No more wondering whether a contractor saw your quote.
The principal-contractor view
What does the main contractor actually see when they click your link?
The profile loads as a clean, branded compliance page. Document categories are listed down the left or across the top. Each document shows a title, expiry date, a "view" button, and a "download" button. Documents close to expiry are flagged with an amber indicator. Expired documents (if any are still visible) are flagged red.
A summary panel at the top shows the headline picture: how many documents are current, how many are within 30 days of expiry, your accreditation badges (CHAS, SMAS, etc), and your trade specialisation.
The page is mobile-responsive so a main contractor can pull up your compliance from their phone at site, which is what they often need to do.
What main contractors typically check first
- Insurance levels - is your public liability cover at or above the project requirement (typically GBP 5-10m for most projects, GBP 25m for large or specialist work)
- Health and safety accreditation - CHAS, SMAS, SafeContractor, or equivalent in date
- Trade-specific certifications - the relevant body for your trade (NICEIC for electrical, NFDC for demolition, RICS for surveying, etc)
- Sample RAMS quality - one or two representative documents to gauge how you write
- CSCS or equivalent - confirmation that your workers have the cards required for the project type
If those five items check out cleanly, most main contractors will progress you. If anything is missing or expired, the conversation stalls until it is resolved.
What compliance shares cannot do
Some limits worth being honest about:
Replace trust
A clean compliance share gets you past initial screening. It does not replace the trust that comes from working with a main contractor over multiple projects, delivering well, and being easy to work with. The share is necessary but not sufficient.
Verify the documents are genuine
The platform can show that you have uploaded an insurance certificate, but it cannot verify with the insurer that the certificate is genuinely active. Some platforms (including Complys) have started integrating with verifiers (CHAS, NICEIC, SIA) to fetch authoritative status; this is a developing area but coverage is not yet universal.
Substitute for direct conversations
The main contractor's commercial team will still want to talk to you about specifics for any given project. The share gives them confidence to start the conversation. It does not have the conversation for them.
Cover bespoke project requirements
For specialist projects with bespoke compliance requirements (defence, nuclear, rail, healthcare), the standard compliance share may not cover everything. You will still need to provide bespoke documentation alongside the share for those projects.
How long does setting up a compliance share take?
By hand (sharing PDFs by email)
Per request from a main contractor:
- Find the requested documents in your filing system: 10 to 30 minutes
- Verify they are current: 5 to 15 minutes
- Re-scan or re-export any that need updating: 10 to 20 minutes
- Compile into zip, email, follow up: 5 to 10 minutes
- Total: 30 to 75 minutes per request
And this repeats for every contractor, every request, often multiple times per year per contractor.
With a compliance share link
Initial setup:
- Upload all current documents to the platform: 30 to 60 minutes once
- Generate share link: 30 seconds
Per request: send the link, done. 2 minutes per request, no extra effort regardless of how often contractors check.
For a typical mid-size trade contractor working with 8-12 main contractors, that is several hours per month back.
Who benefits most from compliance share links
Subcontractors with multiple main contractor relationships
The biggest savings. If you work with 5+ main contractors regularly, the share link saves real hours per month and the maintenance is the same regardless of how many contractors check you.
Subbies pursuing new tenders
A share link in your tender response signals professionalism. It makes the commercial team's life easier, which is influential at the early-screening stage. Tenders win on small advantages.
Trade contractors aiming for tier-1 work
Tier 1 main contractors (Balfour Beatty, Sir Robert McAlpine, etc) have rigorous compliance verification at multiple gates. A live compliance share is increasingly the expected delivery format, not a nice-to-have.
Smaller contractors on a few projects
The benefit is real but more modest. If you work with one or two main contractors and they are happy with email PDFs, the share link is convenient but not transformative. Still worth setting up because the first new main contractor relationship will need it.
What to look for in a compliance share tool
Persistent URL
The link should not change when you update documents. If the URL rotates, your tender responses, pre-qual records, and email signatures all break. A permanent URL with internal versioning is the right design.
Mobile-responsive view
Main contractors often check compliance from a phone on site. A profile that displays well on a 6-inch screen wins.
Access tracking
You should see who accessed your share and when. Useful for tender follow-up and for spotting contractors who are reviewing you.
Auto-expiry handling
Expired documents should either disappear from the share or be clearly flagged. A share that displays an expired insurance certificate without warning is worse than no share.
Branding control
Your company name, logo, and brief description should be visible on the share page. This is your professional presence to the main contractor; it should look like yours.
Categorisation that matches industry conventions
Insurance, accreditations, policies, training, plant. Standard categories that a commercial team will recognise instantly. Tools that invent their own categories make life harder.
Reasonable file size limits
Some platforms cap individual document size at 5MB, which is below what many CHAS certificates need. Check the limits before committing.
Free tier or trial that includes the share feature
You want to be able to test this with a real document set and real main contractor before paying. Tools that lock the share behind paid plans before you can evaluate are not customer-friendly.
Common questions about compliance shares
Is a compliance share a replacement for CHAS?
No. CHAS is an independent accreditation that verifies your H&S management. A compliance share is a way of sharing your documents (including your CHAS certificate) with main contractors. Both exist; they do different things.
Will main contractors push back if I send a link instead of a zip?
Increasingly no. Main contractors prefer links because they save time and reduce risk. A handful of older firms still prefer email PDFs; you can do both (the platform exports the documents as a zip too). The trend is firmly towards links.
What about pre-qual platforms like CHAS, SMAS, Constructionline?
These platforms have their own document libraries and their own logic. A compliance share complements but does not replace them. Most subbies use both: pre-qual platforms for accreditation, compliance share for ongoing main-contractor relationships.
Can I have different shares for different contractors?
Yes. Most tools (including Complys) let you create custom shares with subsets of documents. Useful when one contractor only needs to see specific accreditations or when you want to share differently with different client tiers.
What if I want to revoke a share I previously sent?
Most tools let you revoke or disable individual share links. The contractor's saved bookmark stops working. Useful when relationships end or when a share has been over-distributed and you want to reset.
How secure is a compliance share?
The share URL is unguessable (a long random token). Anyone with the link can view. Most tools also offer password-protected shares for sensitive documentation. For most compliance documents (which are designed to be shared with main contractors), the unguessable URL is sufficient.
What happens if I leave the platform?
Your share link becomes invalid. You lose the central place to maintain compliance. Worth choosing a platform that exports your full document set on demand so you can take your library with you if you switch.
The bottom line
The zip-of-PDFs approach worked when paperwork was slow and main contractors checked compliance once a year. It does not work in 2026. Live compliance shares have become the default for serious trade contractors, particularly those working with Tier 1 main contractors or pursuing repeat framework work.
The maintenance overhead is one-time setup, not ongoing administration. The signal it sends to main contractors is professional. The time savings compound over the number of contractors who check you. The platform investment pays for itself within the first month for most multi-contractor trade businesses.
For the related topic of how main contractors review the documents in your share, see our guide to automated RAMS review. For what main contractors specifically look for in your compliance pack, see our honest 2026 insider guide.
Build a live compliance profile in 10 minutes and share it with every contractor from a single URL. Trial includes the full share feature, no card required.