Section 13 notice dates and eligibility for England. Read-only guidance, not legal advice.
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Calculate the earliest permissible start date for a Section 13 (Form 4A) rent increase for an assured periodic tenancy in England, and the latest date to serve the notice. Use when a UK landlord asks about raising rent, Section 13 notice periods, Form 4A timing, or when a rent increase can take effect. England only; general guidance, not legal advice; does not create or serve a notice.
A date rent is currently due (YYYY-MM-DD), used to anchor the rent period. Any recent or upcoming due date works.
How often rent is paid under the tenancy.
The date the tenancy started (YYYY-MM-DD).
Country of the tenancy (for example england, scotland, wales). Defaults to england.
Type of tenancy, for example assured_periodic or fixed_term. Defaults to assured_periodic.
Optional date the landlord has in mind for the increase (YYYY-MM-DD).
The date the rent last took effect after an increase (YYYY-MM-DD), if it has been increased before.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http section13-online https://section13online.co.uk/api/mcp
Calculate the earliest permissible start date for a Section 13 (Form 4A) rent increase for an assured periodic tenancy in England, and the latest date to serve the notice. Use when a UK landlord asks about raising rent, Section 13 notice periods, Form 4A timing, or when a rent increase can take effect. England only; general guidance, not legal advice; does not create or serve a notice.
| Argument | Type | Description |
|---|---|---|
| country | string | Country of the tenancy (for example england, scotland, wales). Defaults to england. |
| tenancy_type | string | Type of tenancy, for example assured_periodic or fixed_term. Defaults to assured_periodic. |
| rent_due_date* | string | A date rent is currently due (YYYY-MM-DD), used to anchor the rent period. Any recent or upcoming due date works. |
| payment_frequency* | string | How often rent is paid under the tenancy. |
| tenancy_start_date* | string | The date the tenancy started (YYYY-MM-DD). |
| proposed_start_date | string | Optional date the landlord has in mind for the increase (YYYY-MM-DD). |
| last_rent_increase_date | string | The date the rent last took effect after an increase (YYYY-MM-DD), if it has been increased before. |
{
"type": "object",
"required": [
"payment_frequency",
"rent_due_date",
"tenancy_start_date"
],
"properties": {
"country": {
"type": "string",
"description": "Country of the tenancy (for example england, scotland, wales). Defaults to england."
},
"tenancy_type": {
"type": "string",
"description": "Type of tenancy, for example assured_periodic or fixed_term. Defaults to assured_periodic."
},
"rent_due_date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "A date rent is currently due (YYYY-MM-DD), used to anchor the rent period. Any recent or upcoming due date works."
},
"payment_frequency": {
"enum": [
"weekly",
"monthly",
"quarterly",
"yearly"
],
"type": "string",
"description": "How often rent is paid under the tenancy."
},
"tenancy_start_date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "The date the tenancy started (YYYY-MM-DD)."
},
"proposed_start_date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "Optional date the landlord has in mind for the increase (YYYY-MM-DD)."
},
"last_rent_increase_date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "The date the rent last took effect after an increase (YYYY-MM-DD), if it has been increased before."
}
},
"additionalProperties": false
}List the eligibility requirements for increasing rent with a Section 13 notice (Form 4A) for an assured periodic tenancy in England. Use when someone asks whether they can use Section 13, what the rules for a rent increase are, or what Form 4A is. England only; general guidance, not legal advice.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 6, 2026.