> For the complete documentation index, see [llms.txt](https://support.onfact.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.onfact.eu/more-features/tags.md). # Tags If you're using tags in BestInvoicing, they will be dynamically replaced by the corresponding values of your customer or your document. Example: Available tags in BestInvoicing:
TagInfo
%number%Serial number
%company_name%Your company name
%iban%Your IBAN account number
%bic%Your BIC code
%customer_number%Customer number
%customer_name%Customer name
%contact_name%Name of contact person (if available)
%document_number%Serial number
%document_date%Date of document
%total_amount_excl%Total amount excl. VAT
%total_amount_incl%Total amount incl. VAT
%total_amount_to_be_paid%Total amount to be paid
%term%Payment term in days
%expiration_date%Expiration date
%financial_discount%Prompt payment discount (PPD) in percentage
%financial_discount_date%Final payment date for PPD
%total_amount_incl_with_financial_discount%Total amount incl. VAT and PPD
%link%URL to the online document
%payment_button%Payment button
%sign_button%Button to sign the document online
%customer_street%Customer street
%customer_street_number%Customer street number
%customer_city_code%Customer zip/city code
%customer_city%Customer city
%customer_email%Customer email address
%customer_phone%Customer phone number
%customer_gsm%Customer mobile number
%customer_fax%Customer fax
%customer_website%Customer website
%customer_country_id%Customer country
## Tags in Subscriptions If you use [Subscriptions](/apps-integrations/subscriptions-recurring-invoices.md) in BestInvoicing, you can use some additional tags in relation to dates. The tag %start% is for example converted to the invoice date, the tag %end% to the day preceding the next invoice date. ![](/files/ki6X236XMVpxftyMQoHv) The list of available tags can be found behind the 'I Tags' button, to the right above the text fields.