Which plan is right for a buy-to-let portfolio?

It depends on how many tenancies you run. Free covers up to 2, Growth covers 5, Portfolio covers 20, which is where most buy-to-let landlords with a handful of properties sit, and Portfolio+ covers unlimited tenancies for larger portfolios. Every paid plan includes MTD reporting, starts with a 30-day free trial and a 14-day money-back guarantee, and has no per-property charges.