Righto Tax

Who can do my Making Tax Digital quarterly updates for me as a plasterer?

By Righto Tax · Last reviewed · 21 sources

You, or an agent you authorise through HMRC: an accountant, a bookkeeper or a managed service. Pick one that handles labour-only builder work and homeowner jobs. For 2027 joiners, the first update is due 7 August 2027.

Making Tax Digital for Income Tax (MTD) asks for four quarterly updates a year, sent from compatible software, then a tax return. Many plasterers work labour-only for builders under the Construction Industry Scheme (CIS), and also plaster for homeowners, some paying in cash. Whoever sends your updates has to handle both. This page follows GOV.UK, HMRC's manuals and the law as checked on 18 October 2026.

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Your options as a plasterer

Who sends the updateWhat they can doWhat they cannot do, or what to watch
You, with softwareSend updates and your tax return, and request any refund through your HMRC online services accountYour time each quarter
A main agent, often an accountantSign you up, send updates and your tax return, see your tax calculation, request a refundCannot set up a Direct Debit or change how HMRC contacts you
A supporting agent, often a bookkeeperSign you up and send quarterly updatesCannot send your tax return, see your tax calculation or request a repayment
A managed serviceBuilds updates from your bank feed and statements, as your main or supporting agentWhat it covers, and whether you confirm before sending

You can have one main agent at a time and any number of supporting agents.

Homeowner jobs and builder jobs

CIS 340 says private householders are not contractors, so a homeowner having their own home plastered pays you in full, with nothing taken off.

Builder work is different. The law behind CIS covers the construction, alteration and repair of buildings, and work that renders them complete. Neither it nor HMRC's index of construction operations names plastering, but in our reading plastering, dry lining and rendering are part of that work, so they are CIS work when a builder or other contractor pays you. CIS 340 says a contractor working for a private householder must still operate the scheme on what it pays you.

On labour-only work the deduction comes off the whole payment, apart from any VAT you charge. On supply-and-fix work, it is not taken from the direct cost of materials, which HMRC's manual says is what you can show you paid, and CIS 340 says plant hired from a third party, such as a mixer, can count as materials.

In our reading, all of it goes into the income in your quarterly updates, with CIS pay counted before deductions. GOV.UK says your income is your pay before deductions, and the deductions are advance payments towards your tax. They are not part of the update. HMRC adds them to your MTD tax return.

What a plasterer's agent needs from you

  • A diary of cash jobs, with the date, amount and customer. GOV.UK says some transactions may not appear in full in a bank feed and must be created separately. Cash you keep never appears, and banked cash shows only as a lump sum.
  • Monthly CIS statements from each builder that takes a deduction, due within 14 days of the end of the tax month. If you are paid gross, keep your invoices instead.
  • Merchant and hire receipts for each supply-and-fix job. GOV.UK says that without evidence the contractor will estimate the cost of materials.
  • Van and tool costs, such as trowels, mixing drills, stilts and skip hire.
  • Your 2024-25 and 2025-26 figures, to confirm your start date.

If your turnover is under £90,000, each item only needs to be marked as income or expense.

What any agent must have

  • An HMRC agent services account. An agent needs one to sign clients up for MTD. HMRC now requires most people paid to deal with it about someone else's tax to register through this account, and is bringing the rule in by stages.
  • Approved money-laundering supervision, by HMRC or another supervisory body, before it applies for that account.
  • Your authorisation, not your password. A new agent sends a link and you accept it with your own HMRC sign-in within 21 days.

What this means for you

MTD started on 6 April 2026 if your qualifying income was over £50,000 in 2024-25. Otherwise it starts on 6 April 2027 if your 2025-26 qualifying income was over £30,000, or on 6 April 2028 if it was over £20,000 in 2026-27. Qualifying income is self-employed and property income before expenses, and in our reading, for CIS work that means before deductions.

If you start in April 2027, your first update covers 6 April to 5 July 2027 (1 April to 30 June on calendar periods) and is due by 7 August 2027. If you must use MTD, a late tax return earns a penalty point from your first MTD year, and a late update from 2027-28, or from 2028-29 if you join in April 2027, as the 28 October 2026 Budget said; 4 points brings a £200 penalty.

Agree whether you or your main agent will request any CIS refund, as GOV.UK says a supporting agent cannot. Whoever you choose, you stay responsible for your tax.

If you would rather hand it over, our Trades Tax plan is £35 a month including VAT. Our tax plans start once our HMRC registrations are complete. Until then you can join the waitlist, and no payment is taken. Then your bank feed becomes your quarterly updates, your CIS deductions are tracked all year, and you sign off every figure. The founding offer for the first 500 trades clients is £5 a month for your first 3 months, then £35 a month. Cancel any time. We'll remind you before it changes.

Steps to hand over your updates

  1. Use the free MTD check to confirm your start date, counting homeowner and builder work together.
  2. Sort a year of jobs by who paid you: homeowners, cash included, or builders under CIS, labour-only or supply-and-fix.
  3. Ask any agent whether it sends quarterly updates and covers both kinds of work.
  4. Check it has an HMRC agent services account and money-laundering supervision.
  5. Agree whether it will be your main agent, which includes the tax return and any CIS refund request.
  6. Get the fee in writing, including VAT.
  7. Accept the authorisation link through HMRC, and pass on cash records, receipts and each CIS statement as they arrive.

The quarterly update guide for plasterers shows what goes in. There are more guides in the trades section.

Hold your place on the trades waitlist

We’ll email you when Trades Tax opens, with the founding offer while places last. No payment is taken.

Optional

Sending this asks us to email you what you’ve asked for here: your results, reminders and service updates. That’s not marketing. See our privacy notice for how we use and protect your details.

Questions people ask

Can the builder I work for do my MTD updates?

In our reading, not as part of CIS. A contractor's monthly CIS returns report what it paid you and deducted. Your MTD updates cover all your work, including jobs for homeowners, and you send them yourself or through an agent you authorise.

I work labour-only for one builder. What does my agent put in?

The gross figure on each monthly statement, before the deduction. CIS 340's example is £200 of labour-only work, £40 deducted and £160 paid. In our reading your income is the £200, and the £40 is not part of the update. HMRC adds it to your MTD tax return.

Can a bookkeeper do my updates and someone else my tax return?

Yes. GOV.UK says you can have one main agent and any number of supporting agents. Both can send quarterly updates, but only the main agent can send your tax return or see your tax calculation.

Do I give my agent my HMRC password?

No. HMRC's standard for agents says agents must never ask for your HMRC sign-in details. A new agent sends you a link, and you sign in with your own details to accept it within 21 days.

Will my agent get my CIS refund?

HMRC adds your CIS deductions to your MTD tax return, and any refund is requested separately through HMRC online services. A main agent can request it through its agent services account; GOV.UK says a supporting agent cannot. Agree in writing how any refund reaches you.

A homeowner paid me in cash for a ceiling. Does my agent need to know?

Yes. Cash from a job is business income in full, and a homeowner is not a CIS contractor, so nothing has been taken off. GOV.UK says some transactions may not appear in full in a bank feed and must be created separately, so note each cash job and pass the list on.

Sources

This is general information to help you understand the rules. It isn't tailored to your circumstances, so check your own position before acting on it.

Righto Tax is a trading name of NJG Consultancy Ltd, registered in England and Wales, company number 16095900. Registered office: Jubilee House, East Beach, Lytham St Annes, FY8 5FT.

What happens next

  1. Use the free Making Tax Digital checker to see your own start date and deadlines.
  2. See what Righto Tax for Trades does for you, and join the waitlist.
  3. Questions about this page? Email hello@rightotax.co.uk.