Running a construction or service business in the UK? This concerns you. Fair Payment Legislation 2026 — the new law for SMEs — changes the rules on payments. And honestly? For many Polish businesses, it's the best news in years. Because finally, someone is tackling a problem we know all too well: waiting months for money for work already done.
What is Fair Payment Legislation?
In short: the UK government is stepping in to protect smaller businesses from big players who treat late payments as a free credit facility. Many of us know the drill — you raise an invoice and then wait 60, 90, sometimes 120 days. Meanwhile, you still need to pay your staff, buy materials and cover your rent.
The Federation of Small Businesses reports that 62% of UK SMEs regularly experience late payments. But I'll be straight — among Polish construction and logistics businesses, that figure is probably even higher, because we work as subcontractors in long supply chains where money flows slowly. The new regulations are designed to change that — and not just cosmetically.
What Exactly is Changing?
Maximum Payment Terms: 45 Days
No more absurd 90 or 120-day terms. The new law is clear: maximum 45 days from raising an invoice. Renovating a bathroom for a developer? Supplying materials to a building site? The money must be in your account within 45 days — full stop. For many Polish businesses, this halves the current waiting time.
Penalties for Late Payment — 8% Above Base Rate
This is where the new law has real teeth. Every day of delay beyond the agreed terms = interest at 8% above the Bank of England base rate. At current rates, that's over 12% annually. I'm telling you — this changes the perspective. Suddenly, delaying payments stops being profitable. Big companies that treated your invoices as a free credit line will have to start paying on time. And the penalties accrue automatically — you don't have to ask for them.
Public Register of Payment Practices
This is a change few people talk about, yet it's genuinely useful. Large companies (turnover above £36 million) will have to publicly report how quickly they pay their suppliers. How many invoices they settle on time, how many late, how many are disputed. That data will go into a public register. What does this mean for you? Before signing a contract with a new client, you can check whether they have a habit of paying on time. No more going in blind.
Making Tax Digital — An Additional Compliance Challenge
There's another change going hand in hand with the new payment law. Making Tax Digital (MTD) from April 2026 covers virtually all VAT-registered businesses. No more paper invoices and spreadsheets — HMRC requires digital bookkeeping and filing returns through compatible software. I know many Polish entrepreneurs in the UK still handle invoices "the old way" — but that time is coming to an end.
And here's the interesting connection: MTD and Fair Payment Legislation are pulling in the same direction. Digital invoicing automatically gives you proof of when you raised an invoice and when you did (not) receive payment. Without this, it'll be hard to enforce penalties for late payments. So implementing the right software isn't a luxury — it's a necessity if you want to benefit from the protection the new law provides.
Fair Payment Legislation 2026 in a nutshell:
- 45 days — new maximum payment terms (down from 60)
- 8% + base rate — automatic interest on late payments
- £36 million — turnover threshold for mandatory reporting
- 62% — percentage of UK SMEs experiencing payment delays
- £23.4 billion — estimated amount of overdue payments to UK SMEs
Impact on Polish Businesses in the UK — Who is Most Affected?
Construction and Renovation Businesses
Construction — this is probably the worst hit. I've spoken to many Polish renovation businesses that wait 90, sometimes 120 days, to get paid by developers. You do a bathroom, a kitchen, give everything you've got — and you see the money four months later. Under the new law, that time drops to 45 days, and every extra day costs the client real money. This could be a turning point for the cash flow of Polish construction businesses in the UK.
Logistics and Transport Businesses
Polish people in the UK are a transport powerhouse — couriers, hauliers, warehouse businesses. Shorter payment terms are an obvious benefit. But there's a catch: you also need to make sure your own invoicing meets MTD requirements. If you don't, it'll be hard to prove who owes whom money.
Service Businesses — Cleaning, Catering, IT
If you clean offices, do event catering or provide IT services to UK corporations — you probably know the pattern: the contract is on their terms, payment terms are on their terms, and there's zero room for negotiation. The new law changes that dynamic. Regardless of what's written in the contract, the term cannot exceed 45 days. And if it does — penalties accrue automatically.
How to Prepare — Practical Steps
Don't wait until the law comes into full force and learn from your own mistakes. Here are a few things you can do right now:
Review your contracts. Take every active contract and check the payment terms. Anything above 45 days? It's time to talk to your client.
Switch to digital invoicing. MTD requires it anyway, so you'll need to. Xero, QuickBooks, FreeAgent — pick something that automatically tracks deadlines and sends reminders. Trust me, paper invoices are a thing of the past.
Enable automatic interest charges. Most invoicing software can do this. Set it up once — and the system generates interest notes when someone is late with payment.
Check your clients. Before signing a new contract, look at the public payment register. Better to know upfront whether someone has a habit of paying on time.
Look after your online image. This may sound odd in the context of payment law, but there's a pattern — businesses with a professional website, Google visibility and an automated contact system have a stronger negotiating position. Clients are more likely to pay on time for businesses that look serious.
The Role of Automated Platforms in Compliance
I know what you're thinking — "more regulations, more bureaucracy". But good software does most of the work for you. You raise an invoice, the system monitors the deadline, sends reminders, calculates interest, generates HMRC reports. You focus on your work — the system looks after the cash.
At MAC LEE DESIGNS, we help Polish businesses in the UK bring all of this together. A professional website, a contact form that qualifies enquiries, a booking system, integration with accounting software. So that from the first client contact, through service delivery, to receiving payment — everything is digital and under control. Because in the new regulatory reality, this is no longer optional — it's a condition for survival.
Summary — Don't Wait Until the Last Minute
Fair Payment Legislation 2026 is a rare case of a law that genuinely helps smaller businesses. Polish businesses in the UK stand to gain enormously from this — but only if they prepare. Review your contracts, implement proper invoicing, invest in your website and online visibility. Those who react now will have an advantage. And those who ignore it? Well — the law will work either way. Better to be on the right side of it.
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