Know what every main contractor owes you. And never miss a notice date.

Retention, late payments and notice dates for every main contractor, from the applications you already send. Alerts 7 days ahead, and letters drafted for you to send.

Retention release card: the first half of the retention on Elm Street Car Park, £10,500, due Thursday 12 November, in 7 days, with the release request drafted
Overdue payment alert: Application 12 for Northgate Leisure Centre from Altbury Build Ltd, £75,660.00, 37 days overdue, with a Draft reminder button
Sample Auromis overview: £683,573 owed by five main contractors, £224,321 retention held and £198,574 overdue, with a table by main contractor and the next 7 days

Built for specialist subcontractors in every trade.

For trades sending applications to main contractors every month.

  • Electrical
  • Mechanical & plumbing
  • Drylining & ceilings
  • Groundworks
  • Steel frame
  • Cladding & glazing
  • Roofing
  • Joinery
  • Flooring
  • Painting & decorating

Late payment is still built into the system.

£1.69bn
of £9.51bn in invoices that 18 major UK contractors paid later than agreed in H1 2026.¹
60 days
Maximum payment terms proposed in the Commercial Payments Bill.²
Retentions
The same Bill proposes to ban retention clauses in construction. No start date as of October 2026.²

¹ UK Payment Practices register, reporting period H1 2026. ² Commercial Payments Bill, gov.uk factsheet, 19 May 2026. Proposals, not yet law as of October 2026.

Why Auromis

Stop tracking cash in spreadsheets and email

Upload what you already have. Auromis reads it, shows what every main contractor owes you and flags what needs action.

Upload screen: an application, a pay less notice flagged at £24,600 less, a bank statement and a payment notice being read, beside the fields read from Application 8

Read, not retyped

Applications, payment and pay less notices, remittances and CIS deduction statements. Every line read, every number sourced.

How uploads work
Card showing what each main contractor owes, split into retention, overdue, not yet due, pending and short

Every contractor in one view

Applied, notified, paid and held back, per contract and per main contractor, so you know who to chase first.

See the cash report
Draft retention release request to Ashcombe & Rhys Ltd for £10,500.00, the first half, with Approve & download and the note that nothing is sent without you

Ready before the deadline

Alerts 7 days before payment notice, pay less notice and retention release dates. Letters come pre-filled; you decide what goes out.

See the letters
Features

Every pound you’re owed, and every notice date

Retention, late payments, notice dates and letters, across every contract and main contractor.

Retention tracker: £224,321 held and £10,500 due for release, per contract with both halves, release dates and status

Retention tracker

Both halves of every retention, at practical completion and end of defects, with release reminders.

Overdue payments by main contractor with ageing bars: £198,574 overdue in total, the oldest 58 days

Late payments

What’s overdue, by main contractor, and since when, with statutory late-payment interest where it applies.

Notice and payment dates for the next 7 days by email: a payment notice due, a final date for payment and a retention release on a week strip

Notice-date alerts

Payment and pay less notice dates, and the notified sum if a notice is missed. Flagged 7 days ahead.

Two letter drafts: a retention release request and a payment reminder, each with its recipient and amount

Letters, ready to send

Payment reminders with late-payment interest and retention-release requests, pre-filled. You send them.

Trust

Your files, your decisions

The rules we build Auromis by, from your first upload to every letter. See how we handle your data.

No portal logins

You upload what you already have. We never log in to, scrape or submit to portals.

Nothing sent without you

Every letter is a draft you review. You decide what goes out and when.

A source for every number

Click any figure to see the document and line it came from.

Maths by code, not AI

AI reads your documents; plain code adds up every total.

Rules with citations

Every date shows the section of the Act or contract clause behind it. Not legal advice.

Your data stays yours

Encrypted in transit, never sold, deleted on request. Shared statistics only with your consent.

How it works

Set up in minutes, not valuation cycles

No setup call and nothing to replace. Upload the files you already have, and Auromis does the reading.

Upload what you have

Drag in your latest applications for payment, the payment and pay less notices you received, remittances and CIS deduction statements. Auromis reads every line and links each number to the page it came from.

  • Applications in Excel or PDF, notices, remittances

  • CIS deduction statements and aged debtor reports

  • No portal logins and nothing to replace

What you can upload
Upload card: files dropped in, 6 files being read with 4 done, including a pay less notice flagged to check

Confirm in about 10 minutes

Check the contracts, main contractors and retention percentage Auromis found. Every number links to its source document, and plain code does the maths, not AI.

  • Contracts, main contractors and retention %

  • Every number linked to its source

  • Low-confidence lines flagged for a check

How we check numbers
Confirm screen: contracts with their main contractor and retention %, one flagged where retention halves at practical completion, and a Confirm 8 contracts button

Act before the deadline

Get an alert 7 days before each payment notice, pay less notice and retention release date. Letters come pre-filled, and you decide what goes out. Not legal advice.

  • Alerts 7 days before every notice date

  • Payment reminders with late-payment interest

  • Retention release requests, ready to send

See every module
Overdue payment alert for Application 12 on Northgate Leisure Centre next to the drafted payment reminder claiming statutory interest

One cash report for every main contractor

Applied, notified, paid and held back per contract, with the source behind every number.

Cash ledger with applied, notified, paid, retention and overdue amounts for eight contracts, and a side panel tracing Application 12 to its source documents

Compare main contractors

See who owes the most, who pays late and how much retention each main contractor holds.

Short payments, line by line

What you applied for, what was notified and what was paid, with the source for every gap.

Variations tracked

Unpriced and unpaid variations and compensation events, tracked until they’re paid.

Your files

Works with the files you already have

Applications, payment and pay less notices, CIS statements and aged debtor reports from Xero, Sage or QuickBooks.

Who it’s for

For everyone who chases the money

For specialist subcontractors, and the accountants who work with them.

  • For subcontractors sending applications every month

    Directors, commercial managers and QSs see what every main contractor owes, the retention held and what’s overdue, with notice dates flagged 7 days ahead.

  • For accountants and bookkeepers

    Your accountant or bookkeeper gets their own login across all your contracts, on the Business plan.

Free tools, built on the same rules

Look up how fast your main contractor pays, from the government’s payment-practices reports, and check your notice deadlines. Free to use.

See the free tools
Modules

Beyond the essentials

More of what Auromis does, next to retention, late payments, notice dates and letters.

  • Payment matching

    Remittances matched to each application: what arrived, what’s short and what’s still out.

  • Notified sum watch

    If a pay less notice is missed, we show the notified sum that falls due, with the dates.

  • Late-payment interest, shown

    Where statutory late-payment interest applies, we show the amount. Information, not a demand.

  • Accountant access

    Give your accountant or bookkeeper their own login across all your contracts.

Letters are drafts you send yourself. Not legal advice.

Pricing

Flat pricing. Never a percentage of your turnover.

Start free with up to 3 active contracts. Upgrade for unlimited contracts, notice-date alerts, letters and more users.

  • Free

    £0 per month

    Try it on a few contracts. No card needed.

    Includes:

    • Up to 3 active contracts
    • Cash report across your main contractors
    • Notice-date checker
    • Payment-speed lookup
  • Pro

    Recommended

    £99 per month

    For subcontractors sending applications to several main contractors each month.

    Everything in Free, plus:

    • Unlimited contracts
    • Notice-date alerts, 7 days ahead
    • Release requests and reminders with interest
    • Variation tracker
  • Business

    £299 per month

    For commercial teams and their accountants.

    Everything in Pro, plus:

    • Multiple users
    • Accountant access
    • Priority support

Prices in GBP, excluding VAT, per company. 2 months free when you pay yearly.

FAQ

Questions, answered

Everything about files, notice dates, pricing and your data.

  • Your last applications for payment, the payment and pay less notices you received, remittances, and CIS deduction statements if you have them.

Still have questions? Contact us or email support@auromis.com.

See what you’re owed, and what’s due next.

Retention, notice dates and letters, free for up to 3 active contracts. No sales call. No demo.