Outsourcing to me means you do not need to worry about holiday accumulation, pension provision, payroll expenses or tax.
You pay one weekly invoice:
Hourly Rate (remote) - £17.50
Hourly Rate (In-house) - £18.50
Alternatively, if you simply require aged debts or individual invoices to be collected:
Collection Fee per invoice - £10.00 or 5%
(whichever is higher)