Best Hammock alternative for MTD in 2026: LandlordTaxAi vs Hammock

TL;DR — which should you choose?

Choose LandlordTaxAi if you are a landlord who uploads bank statements, wants an AI to handle the bulk of SA105 transaction categorisation, and can accept that HMRC recognition is in progress rather than confirmed. It is the better tool for reducing quarterly admin time when you have high transaction volumes.

Choose Hammock if you want a landlord-specific platform that is already on HMRC's compatible software list, gives you a live financial dashboard across all your properties, and connects bank feeds directly without manual CSV uploads. Hammock wins on established track record and regulatory certainty — two things that matter a great deal when your tax compliance is on the line.

The rest of this comparison covers pricing, every feature side by side, honest win/loss analysis, and a three-step migration guide if you decide to move from Hammock to LandlordTaxAi.

Hammock alternative pricing: side-by-side comparison

The table below compares the published pricing and key commercial terms for both tools. Prices are correct as at 19 April 2026.

Prices correct as at 19 April 2026. Verify current rates on each provider's website. HMRC recognition status sourced from HMRC's compatible software list.

Full feature matrix

The matrix below covers 14 features. A tilde (~) means partial support — the feature exists but has meaningful limitations noted beneath the table.

~ = partial support. LandlordTaxAi direct HMRC API submission is launching soon as at 19 April 2026. Hammock partial AI categorisation means rule-based auto-tagging rather than large language model inference on transaction descriptions.

Where Hammock has the edge

This comparison is honest. There are three areas where Hammock is genuinely stronger.

• HMRC recognition — confirmed today

  Hammock appears on HMRC's published compatible software list. If you are mandated from 6 April 2026 and need certainty that your software is on the official register, Hammock gives you that today. LandlordTaxAi's direct API submission launches soon — which is a genuine risk for landlords who cannot afford any ambiguity on their MTD status.

• Direct open banking feed — no CSV juggling

  Hammock connects directly to your bank via open banking, so transactions appear automatically without you needing to log in, download a CSV, and re-upload it. For landlords who find the CSV workflow fiddly, this is a meaningful quality-of-life advantage. LandlordTaxAi currently works from CSV uploads, which adds a small but real step to the quarterly workflow.

• Financial dashboard and in-year tax estimate

  Hammock presents a consolidated financial view across all your properties and gives you a running in-year estimate of your tax liability. This is useful for cashflow planning without needing an accountant to run mid-year numbers. LandlordTaxAi is focused on the categorisation and submission workflow rather than portfolio-level financial analysis.

Where LandlordTaxAi wins as a Hammock alternative

• AI categorisation trained on SA105 categories

  LandlordTaxAi uses large language model inference on each transaction description to map it to the correct HMRC SA105 box — rent income, repairs and maintenance, insurance premiums, letting agent fees, legal and professional costs, and so on. Each categorisation carries a confidence score. Items below 90% confidence are flagged for your review. The practical result is that the quarterly categorisation task, which typically takes landlords one to two hours with manual tools, is reduced to a short approval review.

• Box-level SA105 specificity

  Hammock categorises to property-level income and expense headings. LandlordTaxAi maps directly to the named SA105 boxes that HMRC uses on the property income pages — the distinction matters when your accountant or HMRC queries how a transaction was treated. The AI has been trained on the specific HMRC categories, not generic accounting chart of accounts.

• Bulk transaction handling at scale

  Landlords with five or more properties and high transaction volumes — maintenance contractors, service charges, insurance renewals, letting agent receipts — will find LandlordTaxAi's bulk categorisation substantially faster than rule-based systems. The AI handles volume without the accuracy degradation that rule-based matchers show when transaction descriptions vary.

• Focused on tax compliance, not property management

  LandlordTaxAi does one thing: MTD for Income Tax compliance for landlords. There are no tenancy screens, maintenance logs, or rent collection modules competing for attention in the interface. If you already use a separate property management tool and only need the tax submission layer to be handled accurately and quickly, a focused tool is a better fit than a combined platform.

• Supports 8 UK bank CSV formats out of the box

  LandlordTaxAi auto-detects CSV exports from Barclays, HSBC, Lloyds, NatWest, Monzo, Starling, Santander, and Nationwide. A smart fallback parser handles other formats. Landlords who bank with a provider not yet offering open banking integration — or who prefer not to grant persistent account access — find the CSV route preferable.

Which tool is right for you?

The table below gives a direct steer based on your situation. For a broader view across all MTD options, see our full MTD software comparison.

How to switch from Hammock to LandlordTaxAi

Switching MTD software mid-year is straightforward. The three steps below take most landlords less than an hour to complete.

1. 1

   Export your year-to-date data from Hammock

   In Hammock, navigate to your transactions view and export all income and expense records for the current tax year as a CSV. Download a copy of any quarterly update confirmations HMRC has already acknowledged — these act as your audit trail. Keep these files in a safe location before closing your Hammock account, as data may become inaccessible after cancellation.

2. 2

   Import into LandlordTaxAi and review AI categorisations

   Sign up for LandlordTaxAi and create a property for each rental unit. Upload your bank CSVs covering the period from 6 April to the current date. The AI will categorise all transactions against SA105 boxes and flag any items where its confidence is below 90%. Review those flagged items — for most landlords this takes fewer than 15 minutes per quarter of data.

3. 3

   Connect to HMRC and submit your next quarterly update

   Authorise LandlordTaxAi to connect to your HMRC MTD account via OAuth — this takes around two minutes in the Settings page and does not require you to share your HMRC login credentials with the software. When your next quarterly period closes, review the summary and submit directly from LandlordTaxAi. Note that any quarters already submitted via Hammock remain valid; you are simply taking over submission duties from the next period forward.

LandlordTaxAi vs Hammock: frequently asked questions