CIL Calculator 

Terms of Service

This calculator will give you an indication of the CIL charge payable on a chargeable development, given the parameters you supply. The calculator is based on the formula set out in Schedule 1 of the CIL Regulations 2010 (as amended, 2019), and the CIL rates set by Harrow Council.

It is not intended as a final representation of your total liability, and does not constitute legal advice. You should not rely on the calculator when making decisions which depend on the CIL charge amount. Formal determination of the CIL liability will be made by the council when a Liability Notice is issued after a CIL liable application is approved.

Site Details

Decision Date 
Site Demolition 
sqm

Uses

Rate (Schedule) Proposed Retained Liable Total Relief Total Charge Actions
  Clear Table
  Add Use

Site Totals

Breakdown

  Output to PDF

Instructions and further info

Set a Decision Date and any applicable Site Demolition, then click 'Add Use' to begin your CIL Calculation. Below this table is a Site Totals overview along with an optional Breakdown which explains the calculator's output in detail.

Charging Schedule
The council's charging schedule can be found at: https://www.harrow.gov.uk/downloads/file/23221/community-infrastructure-levy-charging-schedule.pdf

Paying CIL in Instalments
Harrow Council has a CIL Instalments policy in place and CIL charges will be payable in accordance with this policy. In cases where a Harrow Borough Council charge is less than £100,000.00 the whole amount will be payable within 60 days of the commencement of the development.
Where a charge is more than £100,000.00 but is less than £250,000.00, the amount will be payable in two instalments of £100,000.00 within 60 days and the rest within 120 days.
Where a charge is more than £250,000.00 but is less than £500,000.00, the amount will be payable in three instalments of £100,000.00 within 60 days and two further instalments of equal amount within 120 and 180 days.
Where a charge is more than £500,000.00, the amount will be payable in four instalments of £100,000.00 within 60 days and three further instalments of equal amount within 120, 180 and 240 days.

Harrow Council also collects CIL on behalf of the Mayor of London. Where a development attracts both the Mayoral and the local authority’s CIL charge, the instalment policy of the local authority will continue to prevail (see paragraph 7 of the MCIL2 Charging schedule - https://www.london.gov.uk/sites/default/files/mcil2_charging_schedule_-_final.pdf). Consequently any instalment schedule outlined in a Demand Notice will reflect the Harrow CIL instalment policy, applied to both Harrow and Mayoral CIL liabilities (as applicable).

The payment of CIL in instalments should be taken into account in any viability assessments, as this will assist with cash flow.


Phased Development
In cases where a development which has been permitted in phases, each phase is treated as separate development for the purposes of CIL, and each phase should be entered into a separate calculator. The phasing of payments should be taken into account in any viability assessments, as this will assist with cash flow.

Relief and Exemption from CIL
If the development is not eligible for social housing relief, there are other reliefs and exemptions that may apply.
Further information on relief and exemption from CIL can be found on the National Planning Practice Guidance website at: http://planningguidance.communities.gov.uk/blog/guidance/community-infrastructure-levy/relief/
Or on the Harrow Council website at: https://www.harrow.gov.uk/planning-developments/community-infrastructure-levy

Final CIL Liability
Formal determination of the CIL liability will be made by Harrow Council when a Liability Notice is issued after a CIL liable application is approved. Please note that the CIL charges produced by the calculator may be subject to change and may differ to the final calculation of CIL liability.

The final calculation of the CIL chargeable amount will be based on the final gross internal area (GIA) floorspace figures proposed as part of the approved development, and will depend on the following:
- Is the floorspace of existing buildings to be demolished or retained eligible for deduction from the CIL chargeable amount?
- Is the development eligible for relief or exemption from CIL?
- Has indexation been applied?
- Have any surcharges or late payment interest been applied?

Further Information
Further information and guidance is available on the Harrow Council website at https://www.harrow.gov.uk/planning-developments/community-infrastructure-levy, all the CIL forms are available on the Planning Portal website at: http://planningguidance.communities.gov.uk/blog/guidance/community-infrastructure-levy/.

For further information or advice on CIL please contact us at HarrowCIL@harrow.gov.uk.