These must be expenses associated solely for your business. Correct bookkeeping and retaining paperwork/invoices/receipts associated with limited company expenses is important way to demonstrate that they are legitimate. They include:

- Salaries

- National insurance contributions payable on employee salaries

- Cost of company formation and annual return fee

- Insurance 

- The costs of travel, accommodation and subsistence while conducting business away from your place of work

- Costs of parking (if using your own vehicle as opposed to a company car)

- Fees associated with training courses

- Cost of telephone and broadband

- Cost of computers and printers

- Costs associated with stationary and postage

- Marketing and advertising spends

- Bank charges and merchant fees

- Costs of an accountant or solicitor

- Charitable donations

It is important to keep receipts and proofs of purchase.