diff --git a/deploy/company.sql b/deploy/company.sql
index 5ddb299..c76d84b 100644
--- a/deploy/company.sql
+++ b/deploy/company.sql
@@ -29,8 +29,8 @@ create table company (
 	created_at timestamptz not null default current_timestamp
 );
 
-grant select on table company to invoicer;
-grant select on table company to admin;
+grant select, update on table company to invoicer;
+grant select, update on table company to admin;
 
 
 commit;
diff --git a/pkg/company.go b/pkg/company.go
index 5fc6642..8151f89 100644
--- a/pkg/company.go
+++ b/pkg/company.go
@@ -66,18 +66,18 @@ func getCompany(r *http.Request) *Company {
 }
 
 type TaxDetailsPage struct {
-	Title string
+	Title        string
 	BusinessName string
-	VATIN string
-	TradeName string
-	Phone string
-	Email string
-	Web string
-	Address string
-	City string
-	Province string
-	PostalCode string
-	Country string
+	VATIN        string
+	TradeName    string
+	Phone        string
+	Email        string
+	Web          string
+	Address      string
+	City         string
+	Province     string
+	PostalCode   string
+	Country      string
 }
 
 func CompanyTaxDetailsHandler() http.Handler {
@@ -88,12 +88,29 @@ func CompanyTaxDetailsHandler() http.Handler {
 		}
 		company := mustGetCompany(r)
 		conn := getConn(r)
-		err := conn.QueryRow(r.Context(), "select business_name, vatin, trade_name, phone, email, web, address, city, province, postal_code, country from company where company_id = $1", company.Id).Scan(&page.BusinessName, &page.VATIN, &page.TradeName, &page.Phone, &page.Email, &page.Web, &page.Address, &page.City, &page.Province, &page.PostalCode, &page.Country);
-		if err != nil {
-			panic(err)
+		if r.Method == "POST" {
+			r.ParseForm()
+			page.BusinessName = r.FormValue("business_name")
+			page.VATIN = r.FormValue("vatin")
+			page.TradeName = r.FormValue("trade_name")
+			page.Phone = r.FormValue("phone")
+			page.Email = r.FormValue("email")
+			page.Web = r.FormValue("web")
+			page.Address = r.FormValue("address")
+			page.City = r.FormValue("city")
+			page.Province = r.FormValue("province")
+			page.PostalCode = r.FormValue("postal_code")
+			page.Country = r.FormValue("country")
+			conn.MustExec(r.Context(), "update company set business_name = $1, vatin = $2, trade_name = $3, phone = $4, email = $5, web = $6, address = $7, city = $8, province = $9, postal_code = $10, country = $11 where company_id = $12", page.BusinessName, page.VATIN, page.TradeName, page.Phone, page.Email, page.Web, page.Address, page.City, page.Province, page.PostalCode, page.Country, company.Id)
+			http.Redirect(w, r, "/company/"+company.Slug+"/tax-details", http.StatusSeeOther)
+		} else {
+			err := conn.QueryRow(r.Context(), "select business_name, vatin, trade_name, phone, email, web, address, city, province, postal_code, country from company where company_id = $1", company.Id).Scan(&page.BusinessName, &page.VATIN, &page.TradeName, &page.Phone, &page.Email, &page.Web, &page.Address, &page.City, &page.Province, &page.PostalCode, &page.Country)
+			if err != nil {
+				panic(err)
+			}
 		}
 		mustRenderAppTemplate(w, r, "tax-details.html", page)
-	});
+	})
 }
 
 func mustGetCompany(r *http.Request) *Company {
@@ -101,5 +118,5 @@ func mustGetCompany(r *http.Request) *Company {
 	if company == nil {
 		panic(errors.New("company: required but not found"))
 	}
-	return company;
+	return company
 }
diff --git a/test/company.sql b/test/company.sql
index cdcc25d..ada6af0 100644
--- a/test/company.sql
+++ b/test/company.sql
@@ -12,8 +12,8 @@ set search_path to numerus, auth, public;
 select has_table('company');
 select has_pk('company');
 select table_privs_are('company', 'guest', array []::text[]);
-select table_privs_are('company', 'invoicer', array ['SELECT']);
-select table_privs_are('company', 'admin', array ['SELECT']);
+select table_privs_are('company', 'invoicer', array ['SELECT', 'UPDATE']);
+select table_privs_are('company', 'admin', array ['SELECT', 'UPDATE']);
 select table_privs_are('company', 'authenticator', array []::text[]);
 
 select has_column('company', 'company_id');
diff --git a/web/template/tax-details.html b/web/template/tax-details.html
index d7047fd..4d201e8 100644
--- a/web/template/tax-details.html
+++ b/web/template/tax-details.html
@@ -46,6 +46,7 @@
 							<input type="text" name="country" id="country" required="required" value="{{ .Country }}" placeholder="{{( pgettext "Country" "input" )}}">
 							<label for="country">{{( pgettext "Country" "input" )}}</label>
 						</div>
+						<button type="submit">{{( pgettext "Save changes" "action" )}}</button>
 				</form>
 			</section>
 {{- end }}